COUPLERS are comprised of 8 + and/or - MITES. This one is built from 8 - MITES. Note that each octant (MITE) has it's modules in different orientation so that in a RHOMBIC DODECA packing (like in the Rhombic Dodeca 3) module faces do not face bond

+ MITE ( B+, A+, A-)- MITE( B-, A-, A+)